Document Generator should support other Template Extensions

Description

Document Generator should support other Template Extensions.

User friction

It should be possible to export also to .XML extension

Steps to reproduce (right now) / Actual Result:

At this moment, Document Generator only allows for export in:

DOCM.
DOCX.
DOTM.
DOTX.
XLSX.
XLSM.
Supported Output Formats and Expected Results
PDF/PDF/A Output
Supported extensions: DOCM, DOCX, DOTM, DOTX, XLSX, XLSM.

IMPACT

What would improve if solved:

It would help the customers to have another exporting option, such as .XML

Impact on stakeholders:

N/A

Current workaround:

Currently, via Document Generator, this is not possible to do.

CONTEXT & EXAMPLES:

Concrete example:

Workaround risk: